Finding the Fourth Proportional to 2,313.18, 3,191.82 and 1,318.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,313.18 : 3,191.82 = 1,318.48 : x
2. Step 2: Convert to fraction form
   2,313.18/3,191.82 = 1,318.48/x
3. Step 3: Cross multiply
   2,313.18x = 3,191.82 × 1,318.48
4. Step 4: Simplify right side
   2,313.18x = 4,208,350.83
5. Step 5: Solve for x
   x = 4,208,350.83/2,313.18
6. Step 6: Final answer
   x = 1,819.29